Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
io.h
Go to the documentation of this file.
1 #ifndef _ASM_ARCH_CRIS_IO_H
2 #define _ASM_ARCH_CRIS_IO_H
3 
4 #include <arch/svinto.h>
5 
6 /* Etrax shadow registers - which live in arch/cris/kernel/shadows.c */
7 
8 extern unsigned long gen_config_ii_shadow;
9 extern unsigned long port_g_data_shadow;
10 extern unsigned char port_pa_dir_shadow;
11 extern unsigned char port_pa_data_shadow;
12 extern unsigned char port_pb_i2c_shadow;
13 extern unsigned char port_pb_config_shadow;
14 extern unsigned char port_pb_dir_shadow;
15 extern unsigned char port_pb_data_shadow;
16 extern unsigned long r_timer_ctrl_shadow;
17 
18 extern unsigned long port_cse1_shadow;
19 extern unsigned long port_csp0_shadow;
20 extern unsigned long port_csp4_shadow;
21 
22 extern volatile unsigned long *port_cse1_addr;
23 extern volatile unsigned long *port_csp0_addr;
24 extern volatile unsigned long *port_csp4_addr;
25 
26 /* macro for setting regs through a shadow -
27  * r = register name (like R_PORT_PA_DATA)
28  * s = shadow name (like port_pa_data_shadow)
29  * b = bit number
30  * v = value (0 or 1)
31  */
32 
33 #define REG_SHADOW_SET(r,s,b,v) *r = s = (s & ~(1 << (b))) | ((v) << (b))
34 
35 /* The LED's on various Etrax-based products are set differently. */
36 
37 #if defined(CONFIG_ETRAX_NO_LEDS) || defined(CONFIG_SVINTO_SIM)
38 #undef CONFIG_ETRAX_PA_LEDS
39 #undef CONFIG_ETRAX_PB_LEDS
40 #undef CONFIG_ETRAX_CSP0_LEDS
41 #define CRIS_LED_NETWORK_SET_G(x)
42 #define CRIS_LED_NETWORK_SET_R(x)
43 #define CRIS_LED_ACTIVE_SET_G(x)
44 #define CRIS_LED_ACTIVE_SET_R(x)
45 #define CRIS_LED_DISK_WRITE(x)
46 #define CRIS_LED_DISK_READ(x)
47 #endif
48 
49 #if !defined(CONFIG_ETRAX_CSP0_LEDS)
50 #define CRIS_LED_BIT_SET(x)
51 #define CRIS_LED_BIT_CLR(x)
52 #endif
53 
54 #define CRIS_LED_OFF 0x00
55 #define CRIS_LED_GREEN 0x01
56 #define CRIS_LED_RED 0x02
57 #define CRIS_LED_ORANGE (CRIS_LED_GREEN | CRIS_LED_RED)
58 
59 #if defined(CONFIG_ETRAX_NO_LEDS)
60 #define CRIS_LED_NETWORK_SET(x)
61 #else
62 #if CONFIG_ETRAX_LED1G == CONFIG_ETRAX_LED1R
63 #define CRIS_LED_NETWORK_SET(x) \
64  do { \
65  CRIS_LED_NETWORK_SET_G((x) & CRIS_LED_GREEN); \
66  } while (0)
67 #else
68 #define CRIS_LED_NETWORK_SET(x) \
69  do { \
70  CRIS_LED_NETWORK_SET_G((x) & CRIS_LED_GREEN); \
71  CRIS_LED_NETWORK_SET_R((x) & CRIS_LED_RED); \
72  } while (0)
73 #endif
74 #if CONFIG_ETRAX_LED2G == CONFIG_ETRAX_LED2R
75 #define CRIS_LED_ACTIVE_SET(x) \
76  do { \
77  CRIS_LED_ACTIVE_SET_G((x) & CRIS_LED_GREEN); \
78  } while (0)
79 #else
80 #define CRIS_LED_ACTIVE_SET(x) \
81  do { \
82  CRIS_LED_ACTIVE_SET_G((x) & CRIS_LED_GREEN); \
83  CRIS_LED_ACTIVE_SET_R((x) & CRIS_LED_RED); \
84  } while (0)
85 #endif
86 #endif
87 
88 #ifdef CONFIG_ETRAX_PA_LEDS
89 #define CRIS_LED_NETWORK_SET_G(x) \
90  REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED1G, !(x))
91 #define CRIS_LED_NETWORK_SET_R(x) \
92  REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED1R, !(x))
93 #define CRIS_LED_ACTIVE_SET_G(x) \
94  REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED2G, !(x))
95 #define CRIS_LED_ACTIVE_SET_R(x) \
96  REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED2R, !(x))
97 #define CRIS_LED_DISK_WRITE(x) \
98  do{\
99  REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED3G, !(x));\
100  REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED3R, !(x));\
101  }while(0)
102 #define CRIS_LED_DISK_READ(x) \
103  REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, \
104  CONFIG_ETRAX_LED3G, !(x))
105 #endif
106 
107 #ifdef CONFIG_ETRAX_PB_LEDS
108 #define CRIS_LED_NETWORK_SET_G(x) \
109  REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED1G, !(x))
110 #define CRIS_LED_NETWORK_SET_R(x) \
111  REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED1R, !(x))
112 #define CRIS_LED_ACTIVE_SET_G(x) \
113  REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED2G, !(x))
114 #define CRIS_LED_ACTIVE_SET_R(x) \
115  REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED2R, !(x))
116 #define CRIS_LED_DISK_WRITE(x) \
117  do{\
118  REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED3G, !(x));\
119  REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED3R, !(x));\
120  }while(0)
121 #define CRIS_LED_DISK_READ(x) \
122  REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, \
123  CONFIG_ETRAX_LED3G, !(x))
124 #endif
125 
126 #ifdef CONFIG_ETRAX_CSP0_LEDS
127 #define CONFIGURABLE_LEDS\
128  ((1 << CONFIG_ETRAX_LED1G ) | (1 << CONFIG_ETRAX_LED1R ) |\
129  (1 << CONFIG_ETRAX_LED2G ) | (1 << CONFIG_ETRAX_LED2R ) |\
130  (1 << CONFIG_ETRAX_LED3G ) | (1 << CONFIG_ETRAX_LED3R ) |\
131  (1 << CONFIG_ETRAX_LED4G ) | (1 << CONFIG_ETRAX_LED4R ) |\
132  (1 << CONFIG_ETRAX_LED5G ) | (1 << CONFIG_ETRAX_LED5R ) |\
133  (1 << CONFIG_ETRAX_LED6G ) | (1 << CONFIG_ETRAX_LED6R ) |\
134  (1 << CONFIG_ETRAX_LED7G ) | (1 << CONFIG_ETRAX_LED7R ) |\
135  (1 << CONFIG_ETRAX_LED8Y ) | (1 << CONFIG_ETRAX_LED9Y ) |\
136  (1 << CONFIG_ETRAX_LED10Y ) |(1 << CONFIG_ETRAX_LED11Y )|\
137  (1 << CONFIG_ETRAX_LED12R ))
138 
139 #define CRIS_LED_NETWORK_SET_G(x) \
140  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED1G, !(x))
141 #define CRIS_LED_NETWORK_SET_R(x) \
142  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED1R, !(x))
143 #define CRIS_LED_ACTIVE_SET_G(x) \
144  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED2G, !(x))
145 #define CRIS_LED_ACTIVE_SET_R(x) \
146  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED2R, !(x))
147 #define CRIS_LED_DISK_WRITE(x) \
148  do{\
149  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED3G, !(x));\
150  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED3R, !(x));\
151  }while(0)
152 #define CRIS_LED_DISK_READ(x) \
153  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED3G, !(x))
154 #define CRIS_LED_BIT_SET(x)\
155  do{\
156  if((( 1 << x) & CONFIGURABLE_LEDS) != 0)\
157  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, x, 1);\
158  }while(0)
159 #define CRIS_LED_BIT_CLR(x)\
160  do{\
161  if((( 1 << x) & CONFIGURABLE_LEDS) != 0)\
162  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, x, 0);\
163  }while(0)
164 #endif
165 
166 #
167 #ifdef CONFIG_ETRAX_SOFT_SHUTDOWN
168 #define SOFT_SHUTDOWN() \
169  REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_SHUTDOWN_BIT, 1)
170 #else
171 #define SOFT_SHUTDOWN()
172 #endif
173 
174 /* Console I/O for simulated etrax100. Use #ifdef so erroneous
175  use will be evident. */
176 #ifdef CONFIG_SVINTO_SIM
177  /* Let's use the ucsim interface since it lets us do write(2, ...) */
178 #define SIMCOUT(s,len) \
179  asm ("moveq 4,$r9 \n\t" \
180  "moveq 2,$r10 \n\t" \
181  "move.d %0,$r11 \n\t" \
182  "move.d %1,$r12 \n\t" \
183  "push $irp \n\t" \
184  "move 0f,$irp \n\t" \
185  "jump -6809 \n" \
186  "0: \n\t" \
187  "pop $irp" \
188  : : "rm" (s), "rm" (len) : "r9","r10","r11","r12","memory")
189 #define TRACE_ON() __extension__ \
190  ({ int _Foofoo; __asm__ volatile ("bmod [%0],%0" : "=r" (_Foofoo) : "0" \
191  (255)); _Foofoo; })
192 
193 #define TRACE_OFF() do { __asm__ volatile ("bmod [%0],%0" :: "r" (254)); } while (0)
194 #define SIM_END() do { __asm__ volatile ("bmod [%0],%0" :: "r" (28)); } while (0)
195 #define CRIS_CYCLES() __extension__ \
196  ({ unsigned long c; asm ("bmod [%1],%0" : "=r" (c) : "r" (27)); c;})
197 #endif /* ! defined CONFIG_SVINTO_SIM */
198 
199 #endif
Generated on Thu Jan 10 2013 12:49:45 for Linux Kernel by   doxygen 1.8.2